Machine for producing moldings.



PATBNTBD APR. 7, 190a. P.LORENTZEN. MACHINE FOR PRODUCING MOLDINGS.

APPLICATION FILED AUG-1, 1907.

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PETER LORENTZEN, OF APENRADE, GERMANY.

MACHINE FOR PRODUCING MOLDINGS.

Application filed August 1, 1907.

Specification of Letters Patent.

Patented April 7, 1908.

Serial No. 386,656.

To all whom it may concern:

Be it known that I, PETER LORENTZEN, a subject of the Emperor ofGermany, residing at Apenrade, Germany, have invented certain new anduseful Improvements in Machines for Producin Moldings with ArchedDecorations, of whic the following is a full, clear, and exactspecification.

The object of the present invention is a machine serving to cut archeddecorations into the face of moldings, face-boards and the like whichintersect each other at any point of the arches.

A revolving profile cutter is preferably secured to a vertical shaft,and the molding is secured under the cutter and sidewise to the shaft sothat the cutter can act on the upper surface, means being provided forthe cutting profile to sink into the wood gradually, either by movingthe cutter shaft longitudinally or by moving the work piece against thecutters. In the device described below as an example the cutter shaftrevolves in stationary bearings and the moldings are lifted up againstthe cutters to be acted upon. Clamps holding the molding can easily beadjusted so that the molding is moved longitudinally at certainintervals and then clamped again in lace.

he accompanying drawing shows a machine in end elevation in Figure 1 andin side elevation, Fig. 2, while Fig. 3 is a plan view.

The machine is an ordinary cutting machine having its vertical spindlewell secured in the frame and the table upon the frame is adapted to bemoved up and down. Above said table a the cutter head dis moving withthe s indle or shaft 1) and the arms carry the profi ed cutting blades,preferably in an inclined position.

To the right and left of the spindle b carriers f can be moved with thestrips of wood 9 secured thereto longitudinally and up and down to beacted upon by the cutters. These carriers f are provided with racks & tobe engaged by pawls Z pivotally connected to arms m, WlllOll are securedto a horizontal shaft 'n, above the table. The work pieces are held inposition by arc shaped checks 0 pivoted to a lever 10 which has one endfulcrumed to a pin secured in an upright g of the frame and is beingguided at its weighted front end in a strap 1", suspended from theceiling. Thus the work pieces are securely The driving shaft 8 receivesmotion by means of a graded belt pulley t secured on one end of saidshaft, while the other end is provided with a crank a, which isconnected with the shaft n by means of a connecting rod 1; and an armto. Thus the awls Z are moved forward and backward as ong as the shaft 8is rotated. The shaft 8 is further provided with two eccentrics whichare connected by pivots y to the table a, thereby producing a graduallifting and lowering of the same.

The connections are so arranged that while the table is lifted and thecutter acts on the wood, the pawls are withdrawn, and the table with thework pieces is lowered before the pawls are moving forward to producethe longitudinal displacement of the work piece. When the table islifted, the checks 0 resting onv the moldings raise the lever 19 withits weight and thereby secure the actual position of the work piece.

Having thus described my invention, what I claim is:

- 1. In a machine for producing moldings with arched decorations, ashaft with cutters revolving in a horizontal plane, carriers as asupport for moldings, arranged at the sides of the shaft and under thecutting profile of the cutter blade, provided with means to raise themgradually against the cutters and periodically shift them lengthwise,substantially as described and for the purpose set forth.

2. In a machine for producing moldings with arched decorations, a shaftwith cutters revolving in a horizontal plane, carriers as a support formoldings, arranged at the sides of the shaft and under the cuttingprofile of the cutting blade, a table supporting and guiding saidcarriers, a driving shaft with eccentrics connected to the table inorder to raise or lower the same with the carriers for the molds, acrank on said driving shaft having its pin approximately opposite thelobe of the eccentrics, a rocking shaft above the table connected to thecrank in by a suitable rod and lever, pawls pivotal l' connected tosuitable arms on the rock shaft and racks on the carriers for themoldings adapted to be engaged by the pawls substantially as described.

3. In a machine for producing moldings with arched decorations, a shaftwith cutters revolving in a horizontal plane, carriers as a support formoldings, arranged at the sides.

of the shaft and under the cutting profile of the cutter blade, a tablesupporting and guiding said carriers, a driving shaft with eccentricsconnected to the table in order to raise or lower the same with thecarriers for the molds, a crank on said driving shaft having its pinapproximately 0 posite the lobe of the eccentrics, a rocking sliaftabove the table connected to the crank in by a suitable rod and lever,pawls pivota y connected to suitable arms on the rock shaft and racks onthe connected with said cheeks to press it down 1.5

upon the moldings.

In testimony whereof I affix my signature.

PETER LORENTZEN.

In the presence oi JULIUS RoPKE, HERMANN VoieT.

